100-meter Hurdles Technical Analysis

Transcription

1 100-meter Hurdles Technical Analysis Loren Seagrave Director of Speed and Movement Director of Track & Field and Cross Country IMG Academy, Bradenton, Florida

2 Global Overview:100m Hurdles The 100/110m Hurdles is not one race, It can be a series of 11 interconnected maximum accelerations Hurdlers must bring their speed to the event

3 Global Overview of 100m Hurdles Is the Technical Model for the Women s 100- meter Hurdles Different From The Men s 110- meter Hurdles? What Should Be The Philosophical Approach In The Women s 100-m Hurdles? Is Drill Technique Interfering With Execution of The Advanced Technical Model

4 Race Model for the 100m Hurdles Pure Acceleration Transition Maximum Rhythm I Maximum Rhythm II Re- Acceleration 13 meters 25.5 meters 25.5 meters 25.5 meters 10.5 m IN O IN O IN O IN O IN 0m 13m 38.5m 64m 89.5m 100m H1 H2 H3 H4 H5 H6 H7 H8 H9 H10 PushPushPush Drive Taller Quick Rhythm Grab Back Hot Track Hip Extension Hip Extension Hip Flexion Hip Extension Hip Flex Acceleration Vmax Vmax Vmax Vmax Ground Prep Ground Prep Recovery Ground Prep Recovery Focus Focus Focus Focus Focus

5 Key Components: 100m Hurdles Start and Acceleration Preparation for Take-Off Take-Off Lead Leg Attack Trail Leg Recovery Lead Leg Landing Trail Leg Re-Acceleration Arm Action

6 Often Forgotten Components Strides between the Hurdles Air Phase after Re-Acceleration with Trail Leg Range Step (Wells, T) Under-emphasis of Active Trail Leg and Arm Re-Acceleration Under-emphasis of a Continuous Active Arm Action

7 Acceleration to the 1 st Hurdle Not Appreciably Different from Sprint Acceleration for Women Depending on Leg Length and Power to Body Weight Ratio. Must Have Consistent Acceleration Pattern to Deliver the Hurdler to the Identical Optimal Take Off Point Utilization of the Acceleration Ladder to Teach Aggressive Attack to Take Off Point

8 The Sprint Hurdles Start Not Appreciably Different from Sprint Start for Women Depending on Power to Body Weight Ratio. Must Be Consistent in Technical Execution

9 1 st Hurdle Preparation for Take-Off Drive the hips over the hurdle from the impending lead leg (Range Step) Little or no deviation from late Pure Acceleration Mechanics Take Off Distance is marginally closer than that of remaining hurdles as velocity is lower

10 1 st Hurdle Take-Off Continued Acceleration Action Through the Hurdle Firm Foot Initiates Ground Contact

11 Preparation for Take-Off for Remaining Hurdles in Race Similar to Strategy Employed by LJers Active Foot Plant, Dorsi-Flexed Ankle, Ball of Foot

12 First Hurdle Clearance Quality of Clearance Determined by Take Off Hip Distance Away from Hurdle While Foot Lands Behind hip

13 Lead Leg Attack Mechanics Take Advantage of Ground Reaction Force from Range Step Advanced Technical Model Focuses on Pop the Thigh Forward Lack of Early and Aggressive Hip Flexion often results in Lead Leg Locking over the hurdle

14 Trail Leg Recovery Mechanics Trail Leg Knee Must race the Opposite Side Hand (McFarlane, B) Trail Leg Must be at near Full Flexion and in Sagittal Plane at Lead Leg Landing

15 Lead Leg Landing Mechanics Lead Leg Negative Thigh Speed Impacted by Trail Leg Thigh Recovery Speed High Negative Foot Speed at Touch Down Minimal or No Frontside Distance Dorsi-Flexed Ankle (Males: Plantar-Flexed) Shin Sinks while Hip Continues to Extend Only 50% Negative Vertical Velocity Handled by Lead Leg

16 Trail Leg Re-Acceleration Mechanics Trail Leg Aggressively Windmills into Active Negative Thigh Acceleration Reduced Air Time Allows Remaining Negative Vertical Forces to be Handled by Trail Leg Often Action is Inhibited by Opposite Arm Lingering Behind the Body

17 Second Step Mechanics (Range) Explosive Projection of the Hips Toward and Over the Hurdle Rail

18 Preparation for Take-Off (Quick) Reduce Range of Motion by Keeping the Foot Low on Recovery (Step Over the Ankle) Attempt to Reduce Air Time and Catch the center of Mass on its Ascending Ligand

19 Re-Acceleration Off Last Hurdle An Opportunity to Snatch Victory Away from Defeat Always Can Reach higher Speed than in Race as There are Two to Three Additional Steps Must be Continually Rehearsed

20 Finish Technique Finish Technique must be regularly rehearsed if It is to be properly executed under pressure of competition